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Objective To intensively study the nutritional physidogy of Pien's larvae gut and analyze its digestion mechanism.

目的 为深入研究菜青虫肠道的营养生理，分析其取食消化机制，对菜青虫肠道细菌进行了研究。

Results of bioassay shows: Pieris papae larvae can be infected with 3 strains. But the toxicity is different.

在同一浓度下，库尔斯塔克亚种的毒力最强，肯尼亚亚种次之，而SC-1菌株较两者弱之。

Five bacteria strains were isolated from the intestine of Pieris larvae by traditional methods of separation, purification and cultivation.

从自然种群的菜青虫肠道环境中按传统分离、纯化、培养，获得细菌5个菌株，对其菌体形态、染色反应、培养性状、生理生化反应进行了系统研究。

The antifeedant activity of the compoud was tested against larvae of Pieris rapae by leaf dipping method and topical application method.

本文研究了该活性成分对菜粉蝶幼虫的拒食作用和对乙酰胆碱酯酶活性的影响。

AFC50 in non-choice condition of azadirachtin B against 3rd instar larvae of Pieris brassicae was 224.48μgmL^(-1) treatment after 24 h.

印楝素B对大菜粉蝶幼虫具有一定的拒食活性，处理后24h，对大菜粉蝶幼虫非选择性AFC50为224.48μgmL^(-1)。

The benzene fraction of the liquid-liquid partitioning was found to be the most active against the larvae of Plutella xylostella and Pieris rapae, with the rate of antifeeding, at ×50 dilution, of 97.7%and 97.3%, respectively, after 12 h exposure.

液—液分配法中，苯提取物的拒食活性最高，在50倍稀释浓度下，小菜蛾Plutella xylostella和菜粉蝶Pieris rapae幼虫对其拒食率分别为97.7%和97.3%。

The antifeedant activity of extract from Heynea trijuga against Pieris rapae larvae,and AshE activity and proteases activity of the highest antifeedant activity of H.

测试了海木提取物对菜青虫幼虫的拒食活性，并对拒食活性高的部分进行了乙酰胆碱酯酶活性、蛋白水解酶活性等测定。

Pileated woodpeckers eat ants, beetle larvae, fruit, and nuts.

大啄木鸟吃蚂蚁、甲虫幼虫、水果和坚果。

Objective The toxicity and synergism of several commonly used insecticides mixed with Piperonyl Butoxide against the larvae of Culex pipiens pallens collected from fields of three regions in Shandong province were determined for controlling vector mosquitoes by scientifically rational use of insecticides as well as delaying and overcome the occurrence and development of resis-tance.

目的 了解常用杀虫剂与增效剂氧化胡椒基丁醚（S 1 ）混用对山东省三个不同地区现场淡色库蚊的毒力及增效作用。

They eat planktonic crustaceans and fish larvae .

以浮游的甲壳动物和鱼类幼体为食。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切